Buffy's objectives in Cyrodiil are three-fold:
1. Talking with her many friends about such things as mud crabs and syndicates of Altmer wizards.
2. Traveling the roads, rivers and beautiful countryside of Cyrodiil and defending her right to do so against those who would accost her.
3. Keeping every dungeon in Cyrodiil permanently clear of foes.
When those three objectives are finished, perhaps she'll want to move on.